Freebase(0.00 / 0 votes)Rate this definition: Serval. The serval is a medium-sized African wild cat. DNA studies have shown that the serval is closely related to the African golden cat and the caracal. Chambers 20th Century Dictionary (0.00 / 0 votes) Rate this definition:
Word forms: plural harrows. countable noun. A harrow is a piece of farm equipment consisting of a row of blades fixed to a heavy frame. When it is pulled over ploughed land, the blades break up large lumps of soil.
ground truth. n. 1. Factual data as ascertainable through direct observation rather than through inference from remote sensing. 2. The reality of a situation as experienced firsthand rather than by report: The regime claims to be winning, but the ground truth is that the rebels are making steady gains.